package upstreamimpl

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"
	"time"

	"git.5iot.com/iotlcm-public/iotlcm-upstream-chan/internal/model"
	"git.5iot.com/iotlcm-public/iotlcm-upstream-chan/internal/model/entity"
	"git.5iot.com/iotlcm-public/iotlcm-upstream-chan/internal/service"
)

func TestMobilePublicTemplateRegistration(t *testing.T) {
	for _, templateKey := range []string{
		sharedOneLinkMobilePublicTemplateKey,
		sharedOneLinkMobilePublicPreviousKey,
		sharedOneLinkMobilePublicLegacyKey,
	} {
		t.Run(templateKey, func(t *testing.T) {
			template, ok := service.UpstreamAPI().GetTemp(templateKey)
			if !ok || template == nil {
				t.Fatal("mobile public template not registered")
			}
			config := &model.SimChannelConfigItemCache{
				Template: &entity.TSimChannelTemplate{
					TempKey:    templateKey,
					TempConfig: `{"token":{"provider":"mobile_public","baseUrl":"https://example.com","path":"/api/get/yd/api/msg"}}`,
				},
				Channel: &entity.TSimChannels{
					ChanKey:    "daliuliang-test",
					ChanConfig: `{"userId":"102369"}`,
					AppSecret:  "test-secret",
				},
			}
			if instance := template.NewTemp(context.Background(), config); instance == nil {
				t.Fatal("mobile public channel failed to instantiate")
			}
		})
	}
}

func TestMobilePublicSign(t *testing.T) {
	const timestamp = int64(1699606000)
	if got, want := mobilePublicSign("bbb", "aaa", timestamp), "2337f8d0d5c0cd9e415a3b3c27c4a595"; got != want {
		t.Fatalf("sign = %q, want %q", got, want)
	}
}

func TestMobilePublicTokenProviderFetch(t *testing.T) {
	now := time.Unix(1700000000, 0)
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != http.MethodPost || r.URL.Path != mobilePublicTokenPath {
			t.Fatalf("request = %s %s", r.Method, r.URL.Path)
		}
		var input struct {
			UserID int64  `json:"userid"`
			Time   int64  `json:"time"`
			Sign   string `json:"sign"`
		}
		if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
			t.Fatal(err)
		}
		if input.UserID != 102369 || input.Time != now.Unix() {
			t.Fatalf("payload = %#v", input)
		}
		if want := mobilePublicSign("secret", "102369", input.Time); input.Sign != want {
			t.Fatalf("sign = %q, want %q", input.Sign, want)
		}
		_, _ = w.Write([]byte(`{"code":200,"msg":"success","data":{"token":"token-1","expire_time":1700003600}}`))
	}))
	defer server.Close()

	provider := NewMobilePublicTokenProvider(MobilePublicTokenConfig{
		BaseURL: server.URL, UserID: "102369", Secret: "secret", Timeout: time.Second,
	})
	provider.now = func() time.Time { return now }
	token, err := provider.Fetch(context.Background())
	if err != nil {
		t.Fatalf("fetch token: %v", err)
	}
	if token.Value != "token-1" || !token.ExpiresAt.Equal(time.Unix(1700003600, 0)) {
		t.Fatalf("token = %#v", token)
	}
}

func TestMobilePublicTokenProviderRejectsExpiredToken(t *testing.T) {
	now := time.Unix(1700000000, 0)
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		_, _ = w.Write([]byte(`{"code":200,"data":{"token":"token-1","expire_time":1699999999}}`))
	}))
	defer server.Close()

	provider := NewMobilePublicTokenProvider(MobilePublicTokenConfig{
		BaseURL: server.URL, UserID: "102369", Secret: "secret", Timeout: time.Second,
	})
	provider.now = func() time.Time { return now }
	if _, err := provider.Fetch(context.Background()); err == nil {
		t.Fatal("expected expired token error")
	}
}

func TestMobilePublicTokenProviderRejectsNonNumericUserID(t *testing.T) {
	provider := NewMobilePublicTokenProvider(MobilePublicTokenConfig{
		BaseURL: "http://127.0.0.1", UserID: "not-a-number", Secret: "secret", Timeout: time.Second,
	})
	if _, err := provider.Fetch(context.Background()); err == nil {
		t.Fatal("expected invalid userId error")
	}
}